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Pharm CH 4

Drug Interactions and Over-the-Counter Drugs

QuestionAnswer
additive effect is the sum of the effects of the two drugs.
adverse drug reaction is an undesirable drug effect that ranges from mild untoward effects to severe toxic effects, including hypersensitivity reaction and anaphylaxis.
antagonistic effects When two drugs that have opposite effects are administered together, each drug cancels the effect of the other. In other words, the actions of both drugs are nullified.
drug incompatibility is a chemical or physical reaction that occurs among two or more drugs in vitro. In other words, the reaction occurs between two or more drugs within a syringe, IV bag, or other artificial environment outside of the body.
drug interaction is defined as an altered or modified action or effect of a drug as a result of interaction with one or multiple drugs.
photosensitivity is a skin reaction caused by exposure to sunlight.
Created by: MBO